July weather forecast
Johnsons Mill, TN

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Weather in July

July, like June, is a hot summer month in Johnsons Mill, Tennessee, with temperature in the range of an average low of 68°F (20°C) and an average high of 87.6°F (30.9°C).

Temperature

In Johnsons Mill, the peak temperatures are generally noted in July, averaging a high of 87.6°F (30.9°C) and a low of 68°F (20°C).

Heat index

For July, the heat index is computed to be a blisteringly hot 104°F (40°C). Greater preventive actions are needed, heat exhaustion and heat cramps are likely. Persistent activity could provoke heatstroke.
Data suggests that the heat index is set for environments in shade and with a light wind. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', offers an insight into how hot it feels when we factor in moisture content. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. Under high air temperature and high humidity (high heat index) conditions, the body's ability to perspire is compromised, increasing the sensation of heat. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.

Humidity

The average relative humidity in July in Johnsons Mill is 78%.

Rainfall

The month with the most rainfall in Johnsons Mill, Tennessee, is July, when the rain falls for 20 days and typically aggregates up to 4.21" (107mm) of precipitation.

Snowfall

In Johnsons Mill, snow does not fall in May through September.

Daylight

In Johnsons Mill, the average length of the day in July is 14h and 18min.
On the first day of July, sunrise is at 5:36 am and sunset at 8:09 pm. On the last day of the month, sunrise is at 5:56 am and sunset at 7:53 pm CDT.

Sunshine

In Johnsons Mill, the average sunshine in July is 10h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the average person.
Note: The maximum UV index of 6 during July translates into these guidelines:
Shun overexposure. Protection from sun ravages is indispensable. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
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Frequently asked questions

What are the warmest months in Johnsons Mill?

July is Johnsons Mill's warmest month, registering average high temperatures of 87.6°F (30.9°C) and lows of 68°F (20°C).

How hot is it in Johnsons Mill in July?

An average high-temperature, in July, in Johnsons Mill, is 87.6°F (30.9°C) and the average low-temperature is 68°F (20°C). In July, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines relative humidity and air temperature, is computed to be 104°F (40°C).

What is the average humidity in July in Johnsons Mill?

The average relative humidity in July in Johnsons Mill is 78%.

What is the wettest month in Johnsons Mill?

The month with the most rainfall is July, when the rain falls for 20 days and typically aggregates up to 4.21" (107mm) of precipitation.

How many days does it rain in July in Johnsons Mill?

In Johnsons Mill, during July, the rain falls for 20 days and regularly aggregates up to 4.21" (107mm) of precipitation.

When it does not snow in Johnsons Mill?

May through September are months without snowfall in Johnsons Mill.

What is the average length of the day in July in Johnsons Mill?

The average day length in July in Johnsons Mill, Tennessee, is 14h and 18min.

What time are sunrise and sunset in July in Johnsons Mill?

On the first day of July in Johnsons Mill, Tennessee, sunrise is at 5:36 am and sunset at 8:09 pm. On the last day of the month, sunrise is at 5:56 am and sunset at 7:53 pm CDT.

How long on average sun shines in July in Johnsons Mill?

In July, the average sunshine duration in Johnsons Mill, Tennessee, is 10h.

What is the month with the highest UV index in Johnsons Mill?

May through August, with an average maximum UV index of 6, are months with the highest UV index in Johnsons Mill, Tennessee.

How high is the UV index in July in Johnsons Mill?

The average daily maximum UV index in July in Johnsons Mill, Tennessee, is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to Sun's UV rays.
Average max. wind speed
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
Johnsons Mill, TN

Average temperature in July - Johnsons Mill, TN
  • Average high temperature in July: 87.6°F

The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (45°F).

  • Average low temperature in July: 68°F

The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (30.7°F).

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Average pressure in July
Johnsons Mill, TN

Average pressure in July - Johnsons Mill, TN
  • Average pressure in July: 30"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).

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Average wind speed in July
Johnsons Mill, TN

Average wind speed in July - Johnsons Mill, TN
  • Average wind speed in July: 4.7mph

The windiest month (with the highest average wind speed) is February (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).

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Average humidity in July
Johnsons Mill, TN

Average humidity in July - Johnsons Mill, TN
  • Average humidity in July: 78%

The months with the highest relative humidity are March and December (79%).
The month with the lowest relative humidity is October (74%).

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Average rainfall in July
Johnsons Mill, TN

Average rainfall in July - Johnsons Mill, TN
  • Average rainfall in July: 4.21"

The wettest month (with the highest rainfall) is July (4.21").
The driest month (with the least rainfall) is September (2.44").

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Average rainfall days in July
Johnsons Mill, TN

Average rainfall days in July - Johnsons Mill, TN
  • Average rainfall days in July: 20 days

The month with the highest number of rainy days is July (20 days).
The month with the least rainy days is November (10.5 days).

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Average snowfall in July
Johnsons Mill, TN

Average snowfall in July - Johnsons Mill, TN
  • Average snowfall in July: 0"

The month with the highest snowfall is January (0.98").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in July
Johnsons Mill, TN

Average snowfall days in July - Johnsons Mill, TN
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is February (4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in July /
Average sunshine in July
Johnsons Mill, TN

Average daylight in July / Average sunshine in July - Johnsons Mill, TN
  • Average daylight in July: 14h and 2min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in July: 10h and 0min

The month with the most sunshine is June (Average sunshine: 10h and 18min).
The months with the least sunshine are February and December (Average sunshine: 4h and 36min).

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Average sunshine days in July
Johnsons Mill, TN

Average sunshine days in July - Johnsons Mill, TN
  • Average sunshine days in July: 8.8 days

The month with the most sunshine days is November (17.9 days).
The month with the least sunshine days is July (8.8 days).

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Average UV index in July
Johnsons Mill, TN

Average UV index in July - Johnsons Mill, TN
  • Average UV index in July: 6

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).

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Average cloud cover in July
Johnsons Mill, TN

Average cloud cover in July - Johnsons Mill, TN
  • Average cloud cover in July: 35

The months with the most cloud cover are February and December (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 30).

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Average visibility in July
Johnsons Mill, TN

Average visibility in July - Johnsons Mill, TN
  • Average visibility in July: 5mi

The months with the highest visibility are February, March, April, June, October, November and December (6mi).
The months with the lowest visibility are January, May, July, August and September (5mi).

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Johnsons Mill, Tennessee, USA

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